Second-order intermodulation mechanisms in CMOS downconverters.

An in-depth analysis of the mechanisms responsible for second-order intermodulation distortion in CMOS active downconverters is proposed in this paper. The achievable second-order input intercept point (IIP2) has a fundamental limit due to nonlinearity and mismatches in the switching stage and impro...

Description complète

Détails bibliographiques
Publié dans:	IEEE Journal of solid state circuits 38, 3 (2003).
Auteur principal:	Manstretta, D.
Format:	Article
Langue:	English
Sujets:	0.18 micron. CMOS active downconverter. UMTS. Direct conversion architecture. Fully-integrated wireless receiver. Linear direct-conversion CMOS mixer. Low intermediate frequency architecture. Parasitic capacitance. Second-order input intercept point. Second-order intermodulation distortion. Self-mixing. Superheterodyne receiver. Switching-pair mismatch. Switching-stage common source. Transconductor nonlinearity.